Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations

doi:10.1088/1674-1056/17/8/024

中国物理B ›› 2008, Vol. 17 ›› Issue (8): 2897-2908.doi: 10.1088/1674-1056/17/8/024

Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations

王礼贤¹, 李德义², 黄卓然³

(1)Department of Physics, Harvey Mudd College, Claremont, California 91711, USA; (2)Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA; (3)Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;School of Physics \& Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China

收稿日期:2007-11-15 修回日期:2007-12-27 出版日期:2008-08-20 发布日期:2008-08-20
基金资助:
Project supported in part by the National Natural Science Foundation of China (Grant No 10575024), and in part by the Division of Nuclear Physics, Department of Energy (Grant No DE-AC05-00OR22725) managed by UT-Battelle, LLC.

Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations

Lee Teck-Ghee(李德义)^a)b), Wong Cheuk-Yin(黄卓然)^a)c), and Wang Lee-Shien(王礼贤)^d)

^a Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA; ^b Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA; ^c School of Physics & Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China; ^d Department of Physics, Harvey Mudd College, Claremont, California 91711, USA

Received:2007-11-15 Revised:2007-12-27 Online:2008-08-20 Published:2008-08-20
Supported by:
Project supported in part by the National Natural Science Foundation of China (Grant No 10575024), and in part by the Division of Nuclear Physics, Department of Energy (Grant No DE-AC05-00OR22725) managed by UT-Battelle, LLC.

摘要/Abstract

摘要： This paper evaluates the interaction potential between a hydrogen and an antihydrogen using the second-order perturbation theory within the framework of the four-body system in a separable two-body basis. It finds that the H--$\bar{\rm H}$ interaction potential possesses the peculiar features of a shallow local minimum located around interatomic separations of $r\sim 6$\,a.u. and a barrier rising at $r\lesssim5 $\,a.u.

关键词: few-body problems, potential energy curve, perturbation theory, H--$\bar{\rm H}$ interaction

Abstract: This paper evaluates the interaction potential between a hydrogen and an antihydrogen using the second-order perturbation theory within the framework of the four-body system in a separable two-body basis. It finds that the H--$\bar{\rm H}$ interaction potential possesses the peculiar features of a shallow local minimum located around interatomic separations of $r\sim 6$ a.u. and a barrier rising at $r\lesssim5 $ a.u.

Key words: few-body problems, potential energy curve, perturbation theory, H--$\bar{\rm H}$ interaction

中图分类号: (Interatomic potentials and forces)

34.20.Cf

31.15.ve (Electron correlation calculations for atoms and ions: ground state) 34.50.-s (Scattering of atoms and molecules)

李德义, 黄卓然, 王礼贤. Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations[J]. 中国物理B, 2008, 17(8): 2897-2908.

Lee Teck-Ghee(李德义), Wong Cheuk-Yin(黄卓然), and Wang Lee-Shien(王礼贤). Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations[J]. Chin. Phys. B, 2008, 17(8): 2897-2908.

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Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations

Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations

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